Improvement in geates foe stoves



gleiten tatcs ntnt @ffice IMPROVEMENT IN GRATES FOR STOVBS.

alle Srlonmrlc referat tu in tiges: ctt'ers ntmt :mh making yat nl lgcsnm.

TO ALL WHOM IT MAY' CONCERN:

Be it known that I, ALnaanT BROWN, of the city.of Troy, in the county ofRensselaer, and `Stato of New I y declare that the following drawing,and the letters of i York, have invented a new and useful Improvement inStove Grates; and Ido hereb is a full and exact description thereof,reference being had to the accompanying reference marked thereon.

Figure 1 shows a plan of the grate and frame.

Figure 2 s a plan of the frame with cross-bar and centre.

Figure 3 shows the under side of the grate when detached from the frame.

Figure 4 shows a cross section at line A Ain fig. 1.

In the centre of' the grate B, on the under side, is the concave cavityC, in exact form to admit a half globe or ball. vPermanently attached tothe frame F, and crossing a. little one side of the centre of its area,is the cross-ba1-,G-, and to the centre of said cross-bar is attachedthe convex centre E, which` is made to fit into the cavity C; upon thiscentre, E, the grate rests, and is made to revolve right and left, tosift down tlic:ashes, elle., which collect above it, in order tokeep thegrate from falling off its centre, E, when dumped, or when turned in aperpendicular position, it was necessary to cnt the slot H, in theconvex centre E, for the cross-pin I, which is attached to the gratedirectly across the cavity C, to rest in. This cross-pin lholds the`grate to its centre when dumped, as shown in iig. 4, by the red lines.It will be observed that by turning the shank J, thc grate can be dumpedat any point of its sphere of movement, which is quite anaccomplishment, as it saves the finding any exact point at which it canbe dumped, as is necessary in other gratcs of the kind. It i that thebar G should be permanently secured to or cast place, to secure theharmonious workingof the grate.

1. The permanent bar G, in co the purposes set forth.

2. I claim the cavity C, in combination with the crossspin I, and theconvex centre E, as and for the purl poses set forth.

s necessary` on to the frame F, in order to hold the centre E inl .embination with the frame F, and convex centre E, or equ'ivalents, as andfor 3. I claim the grate B, working upon the centre E, so arranged as todump on a line withthye shank J', at any point within the sphere of itsmovement, as and for the purpose set forth. L

' ALBERT BROWN. Witnesses: l

Gao. A. WATERS, R. B. Ommen.

